scholarly journals The Auto-infection Trap with the Native Entomopathogenic Fungus, Beauveria Bassiana for Management of Coffee Berry Borer (Stephanoderes Hampei Ferrari) in the Northwest Region of Vietnam

2021 ◽  
Vol 36 (1) ◽  
pp. 191-198
Author(s):  
Buu Thi Suu ◽  
Vũ Quang Giảng ◽  
Vũ Phương Liên ◽  
Dinh Tran Ngoc Huy ◽  
Hà Thị Lan
Keyword(s):  
Beauveria Bassiana ◽  
Entomopathogenic Fungus ◽  
Production Costs ◽  
Coffee Berry ◽  
Coffee Berry Borer ◽  
Negative Factor ◽  
Significant Difference ◽  
Result Show ◽  
Northwest Region ◽  
Fungus Beauveria Bassiana

Among important crops in Vietnam, we have to mention the coffee crop as the main cultivated crop in northwest area of the country, then we have to deal with the negative factor, or insect, coffee berry borer (CBB), which cause losses and damages for farmers with negatively significant impact. In previous studies, we isolated and identified five Beauveria bassiana strains of entomopathogenic fungus that damaged on coffee berry borer in local coffee fields of Son La province, Vietnam. The objective of this study continued to choose one of them for management CBB by autoinoculation trap. The result show that the virulence against CBB of the Bb5(MCB1) strain was highest (71.3 % confirmed mortality). Although 62.5% of CBB females that exposed to the Bb5(MCB1) fungus product with an average of 0,47 x 1012 conidia.gram-1 were able to penetrate the coffee berry exocarp, only 3.7% reached the endosperm. An autoinoculation trap containing the entomopathogenic fungus Bb was designed for the management of the CBB (trap TBU-AIT). Traps TBU-AIT baited with methanol and ethanol (1:1 ratio) mixtures at 868 mg day-1 attracted more insects than those traps baited at 452, 715 and 1050 mg day-1. We found a statistically-significant difference in average confirmed mortalities by fungus and by different field conditions in the period between 0 - 63 days setting traps TBU-AIT. Altogether, these results and relatively low production costs these auto-infection system can be recommended for integrated pest management on coffee auto-infection trap.

Transcriptome analysis of the entomopathogenic fungus Beauveria bassiana grown on cuticular extracts of the coffee berry borer (Hypothenemus hampei)

Microbiology ◽  
2012 ◽  
Vol 158 (7) ◽  
pp. 1826-1842 ◽  
Author(s):  
Javier Guillermo Mantilla ◽  
Narmer F. Galeano ◽  
Alvaro L. Gaitan ◽  
Marco A. Cristancho ◽  
Nemat O. Keyhani ◽  
...  
Keyword(s):  
Beauveria Bassiana ◽  
Transcriptome Analysis ◽  
Entomopathogenic Fungus ◽  
Hypothenemus Hampei ◽  
Coffee Berry ◽  
Coffee Berry Borer ◽  
Cuticular Extracts ◽  
Fungus Beauveria Bassiana

scholarly journals Pathogens Causing Anthracnose and Fruit Rots of Coffee Associated with the Coffee Berry Borer and the Entomopathogenic Fungus Beauveria bassiana in Puerto Rico

2020 ◽  
Vol 110 (9) ◽  
pp. 1541-1552 ◽  
Author(s):  
Luz M. Serrato-Diaz ◽  
Yobana A. Mariño ◽  
Paul Bayman
Keyword(s):  
Puerto Rico ◽  
Beauveria Bassiana ◽  
Fruit Rot ◽  
Hypothenemus Hampei ◽  
Coffee Berry ◽  
Coffee Production ◽  
Coffee Berry Borer ◽  
Green Fruit ◽  
Visible Growth ◽  
Fungus Beauveria Bassiana

Fruit rots reduce coffee production worldwide. Eight Colletotrichum species have been reported to cause coffee fruit rots; the most important is C. kahawae, the cause of coffee berry disease (CBD) in Africa. It is unknown whether these fruit rot pathogens can be dispersed by the coffee berry borer (CBB, Hypothenemus hampei) or whether Beauveria bassiana (a natural enemy of CBB) might reduce coffee fruit rots. We identified pathogens causing coffee fruits rots in Puerto Rico and evaluated whether B. bassiana reduced fruit rot and whether CBB could disperse pathogens. A total of 2,333 coffee fruit with CBB damage were collected; of these, 1,197 had visible growth of B. bassiana. C. fructicola, C. siamense, C. theobromicola, and C. tropicale were isolated and identified from the fruit using morphological traits and phylogeny of three nuclear genes. All four species caused internal and external rot after inoculation of healthy green coffee fruit. Coffee fruit treated with B. bassiana had significantly less fruit rot than untreated fruit, suggesting B. bassiana can protect against fruit rot. To test whether B. bassiana had a protective effect, B. bassiana and Colletotrichum were coinoculated on coffee fruit. Fruit inoculated with both B. bassiana and Colletotrichum had significantly less rot than fruit inoculated with Colletotrichum alone. To test if CBBs dispersed the pathogens, CBBs were exposed to Colletotrichum conidia and placed on green fruit, which resulted in fruit rot. This study identifies new pathogens causing coffee fruit rot, shows that C. kahawae is not the only Colletotrichum that attacks green fruits, suggests a role for B. bassiana in disease management and demonstrates CBB can disperse the pathogens.

scholarly journals Management of the Egyptian alfalfa weevil, Hypera brunneipennis (Boheman) (Coleoptera: Curculionidae), in the alfalfa, Medicago sativa L., using the entomopathogenic fungus, Beauveria bassiana (Balsamo) Vuillemin

2019 ◽  
Vol 29 (1) ◽  
Author(s):  
Monir M. M. El Husseini
Keyword(s):  
Medicago Sativa ◽  
Beauveria Bassiana ◽  
Entomopathogenic Fungus ◽  
Larval Population ◽  
Alfalfa Weevil ◽  
Alfalfa Field ◽  
Medicago Sativa L ◽  
Hypera Brunneipennis ◽  
Fungus Beauveria Bassiana ◽  
Sweep Net

AbstractLarval and adult populations of the Egyptian alfalfa weevil (EAW) Hypera brunneipennis (Boheman) (Coleoptera: Curculionidae) was monitored after application of the entomopathogenic fungus Beauveria bassiana in the alfalfa field (Medicago sativa L.) in two successive seasons 2014/2015 and 2015/2016. The second and last generation of the weevil on April 10, 2016, was controlled by only one application with the conidiospores of the entomopathogenic fungus B. bassiana (3 × 108 spores/ml). Accordingly, the larval population decreased from 16.07 ± 1.09 in season 2015/2016 to 7.37 ± 0.05 individuals/50 sweep net double strokes in season 2016/2017. Also, the adult weevil’s population decreased from 5.66 ± 0.8 to 2.55 ± 0.6 individuals/50 sweep net double strokes in the two seasons, respectively. 39.66% mortality rate was recorded in the Hypera brunneipennis adults aestivated under loose bark of the surrounding eucalyptus trees, which received the application of B. bassiana in the field. Another application with the fungus, targeting the second generation of the pest adults in alfalfa each season, will undoubtedly lead to a further decrease in the pest population.

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